| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2023 | 305 | 千吨 | 2026-9 |
| 2022 | 293 | 千吨 | 2026-9 |
| 2021 | 296 | 千吨 | 2026-9 |
| 2020 | 289 | 千吨 | 2026-9 |
| 2019 | 279 | 千吨 | 2026-9 |
| 2018 | 277 | 千吨 | 2026-9 |
| 2017 | 270 | 千吨 | 2026-9 |
| 2016 | 278 | 千吨 | 2026-9 |
| 2015 | 288 | 千吨 | 2026-9 |
| 2014 | 251 | 千吨 | 2026-9 |
| 2013 | 268 | 千吨 | 2026-9 |
| 2012 | 249 | 千吨 | 2026-9 |
| 2011 | 253 | 千吨 | 2026-9 |
| 2010 | 262 | 千吨 | 2026-9 |
| 2009 | 262 | 千吨 | 2026-9 |
| 2008 | 229 | 千吨 | 2026-9 |
| 2007 | 233 | 千吨 | 2026-9 |
| 2006 | 231 | 千吨 | 2026-9 |
| 2005 | 218 | 千吨 | 2026-9 |
| 2004 | 190 | 千吨 | 2026-9 |
| 2003 | 179 | 千吨 | 2026-9 |
| 2002 | 193 | 千吨 | 2026-9 |
| 2001 | 196 | 千吨 | 2026-9 |
| 2000 | 181 | 千吨 | 2026-9 |
| 1999 | 223 | 千吨 | 2026-9 |
| 1998 | 230 | 千吨 | 2026-9 |
| 1997 | 218 | 千吨 | 2026-9 |
| 1996 | 235 | 千吨 | 2026-9 |
| 1995 | 269 | 千吨 | 2026-9 |
| 1994 | 326 | 千吨 | 2026-9 |
| 1993 | 349 | 千吨 | 2026-9 |
| 1992 | 421 | 千吨 | 2026-9 |
| 1991 | 400 | 千吨 | 2026-9 |
| 1990 | 405 | 千吨 | 2026-9 |
| 1989 | 582 | 千吨 | 2026-9 |
| 1988 | 485 | 千吨 | 2026-9 |